They work for the majority of people of all ages who live in cities where the infrastructure has been properly built to accommodate bikes.
Most people rarely need to haul anything and can use carshare when they do.
I've demoed a multistory house down to the bricks and re-built it from the outside in without a car.
Hired someone to haul off a dumpster several times.
For major materials deliveries, like beams or windows, usually it was the better part of a flatbed truck anyway, so I wasn't going to be doing that in a car. Most of the rest I did with a cargo bike. I only two or three times even bothered to use carshare (e.g. for a load of tiles) even though it's cheap.
I'm not at all proposing that professional builders work this way, but also a relatively small proportion of the population are professional builders. And doing it this way wasn't any kind of a drag for me.
Most people rarely need to haul anything and can use carshare when they do.
I've demoed a multistory house down to the bricks and re-built it from the outside in without a car.
Hired someone to haul off a dumpster several times.
For major materials deliveries, like beams or windows, usually it was the better part of a flatbed truck anyway, so I wasn't going to be doing that in a car. Most of the rest I did with a cargo bike. I only two or three times even bothered to use carshare (e.g. for a load of tiles) even though it's cheap.
I'm not at all proposing that professional builders work this way, but also a relatively small proportion of the population are professional builders. And doing it this way wasn't any kind of a drag for me.